LXR qemu/hw/arm/stm32vldiscovery.c

   1/*
   2 * ST STM32VLDISCOVERY machine
   3 *
   4 * Copyright (c) 2021 Alexandre Iooss <erdnaxe@crans.org>
   5 * Copyright (c) 2014 Alistair Francis <alistair@alistair23.me>
   6 *
   7 * Permission is hereby granted, free of charge, to any person obtaining a copy
   8 * of this software and associated documentation files (the "Software"), to deal
   9 * in the Software without restriction, including without limitation the rights
  10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  11 * copies of the Software, and to permit persons to whom the Software is
  12 * furnished to do so, subject to the following conditions:
  13 *
  14 * The above copyright notice and this permission notice shall be included in
  15 * all copies or substantial portions of the Software.
  16 *
  17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  23 * THE SOFTWARE.
  24 */
  25
  26#include "qemu/osdep.h"
  27#include "qapi/error.h"
  28#include "hw/boards.h"
  29#include "hw/qdev-properties.h"
  30#include "hw/qdev-clock.h"
  31#include "qemu/error-report.h"
  32#include "hw/arm/stm32f100_soc.h"
  33#include "hw/arm/boot.h"
  34
  35/* stm32vldiscovery implementation is derived from netduinoplus2 */
  36
  37/* Main SYSCLK frequency in Hz (24MHz) */
  38#define SYSCLK_FRQ 24000000ULL
  39
  40static void stm32vldiscovery_init(MachineState *machine)
  41{
  42    DeviceState *dev;
  43    Clock *sysclk;
  44
  45    /* This clock doesn't need migration because it is fixed-frequency */
  46    sysclk = clock_new(OBJECT(machine), "SYSCLK");
  47    clock_set_hz(sysclk, SYSCLK_FRQ);
  48
  49    dev = qdev_new(TYPE_STM32F100_SOC);
  50    qdev_prop_set_string(dev, "cpu-type", ARM_CPU_TYPE_NAME("cortex-m3"));
  51    qdev_connect_clock_in(dev, "sysclk", sysclk);
  52    sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
  53
  54    armv7m_load_kernel(ARM_CPU(first_cpu),
  55                       machine->kernel_filename,
  56                       0, FLASH_SIZE);
  57}
  58
  59static void stm32vldiscovery_machine_init(MachineClass *mc)
  60{
  61    mc->desc = "ST STM32VLDISCOVERY (Cortex-M3)";
  62    mc->init = stm32vldiscovery_init;
  63}
  64
  65DEFINE_MACHINE("stm32vldiscovery", stm32vldiscovery_machine_init)
  66